Not all sedges are the same: annual vs. perennial sedge control.

We generally hear people talk about sedge control as one major topic, but not all sedges are the same. There are actually hundreds of different kinds of sedges and understanding the difference will help you correctly control them. Some products promote their control of “sedges”, but when you read the label, you realize they may only control one type of sedge. When thinking sedge control in turf, we can place sedges into two major groupings: annual and perennial. Annual sedge This grouping includes the only true annual sedge sometimes referred to as watergrass (Cyperus compressus ) and others like Texas sedge, globe, rice flathead and cylindrical sedge. Annual type sedges complete their life cycle from the spring through fall. They germinate primarily from seeds each year, mature in one growing season and die in less than 12 months. Annual sedges are more clumpy in appearance and emerge late in the season in wet, poorly drained areas. We tend to notice these sedges more as they begin to flower in the late summer and early fall. Once the first frost has occurred, these sedges are gone. Annual sedges are easier to control when compared to perennial sedges. Perennial sedge Perennial sedges, such as purple or yellow nutsedge, live more than one year and recover or regrow from dormant stolons, rhizomes, or tubers (nutlets) instead of seeds over a number of years. One yellow or purple nutsedge plant can produce hundreds of tubers in a season. These tubers can remain in the soil for long periods of time before they germinate to produce another sedge plant. Perennial sedges germinate or regrowth...

Turn your turf into a NO ZOMBIE ZONE with FMC herbicides featuring sulfentrazone.

In 2012, you thought you killed them. But, they’ll be back. That’s right; I’m talking about ZOMBIE WEEDS. You may think zombies are just fictional monsters you see on AMC’s The Walking Dead or in the upcoming major motion picture featuring Brad Pitt, World War Z. But in reality you probably see zombies invading your turf every season, and know firsthand how difficult controlling them can be. ZOMBIE WEEDS are perennial weeds like yellow nutsedge, green kyllinga, wild violet and ground ivy that seem to come back from the dead year after year and often times with a vengeance! Did you know that one yellow nutsedge tuber can produce 700 new tubers within six months if left untreated. Purple nutsedge is even more prolific than yellow nutsedge. Yikes! I’d even argue that ZOMBIE WEEDS include the increasing number of weeds that are becoming resistant to certain herbicides. In the agricultural crop market, the incidence and rapid onset of resistant weeds is doubling every three years and experts estimate that it could soon double every other year due to overreliance on certain chemistries. In our world of turf, we’ve already seen the rise of resistant goosegrass and Poa annua, just to name a few. As a turf professionals, we need to continually remind ourselves to be good stewards of our industry and rotate chemistries to minimize the onset and incidence of resistant ZOMBIE WEEDS. Luckily, there are solutions that can help turn your turf into a NO ZOMBIE ZONE: FMC herbicides featuring an optimized amount of sulfentrazone! A two-year study was conducted on both our straight sulfentrazone products like Dismiss®...

Control nutsedge and kyllinga all season and beyond.

Achieving control of nutsedge and kyllinga has long been problematic for professional turf managers. However, herbicides containing the active ingredient sulfentrazone have proven to be very effective in providing not only fast results against these grassy weeds, but season-long control (when labeled rates are used). In addition, herbicides containing sulfentrazone also impact underground tubers (seeds), helping to reduce future generations of weeds. Herbicides like Echelon®, Dismiss®, Dismiss South®, Solitare® and Blindside® utilize sulfentrazone to provide both soil and foliar activity on nutsedges and kyllinga. Visible foliar activity can be observed just a few days after application due to rapid degeneration of cell walls from the inhibition of an enzyme called protoporphyrinogen oxidase (PPO). The inhibition of PPO blocks chlorophyll and heme synthesis, which disrupts photosynthesis. In one application, these sulfentrazone-containing herbicides control the above ground plant material and the underground reproductive structures of nutsedge and kyllinga plants for fast visible results and a reduction in long-term populations. Data collected from the FMC Research Farm in Sparks, GA (2009 to 2010) indicates that the number of new yellow nutsedge plants in areas treated the season before are significantly reduced when compared to non-treated areas. When sulfentrazone-containing herbicides are applied to an area for two seasons, a further reduction in nutsedge populations can be seen as shown below. For more information on how to control nutsedge and kyllinga with a sulfentrazone-containing herbicide or to find out which herbicide will best treat these grassy weeds on your turf, contact your Market...

Sulfentrazone: Turf protection that gets to the root of the problem.

FMC Professional Solutions proudly offers a comprehensive portfolio of weed, pest and turf disease management products, including a variety of herbicides containing an optimized amount of the active ingredient sulfentrazone. Sulfentrazone impacts underground weed reproductive structures, working to reduce future populations of weeds. Fewer weeds next season means a reduction in time, labor and chemical costs. Take a look at the difference. The photo on the left shows an area of turf covered with wild violet. The photo on the right shows the same area a whole season after treatment with an FMC product featuring sulfentrazone. As you can see, no wild violet has reemerged. With so many products packed with the power of this amazing active ingredient, you’re sure to find the right solution for your specific turf care needs. These products include: Blindside® herbicide: formulated for control of sedges and some of the toughest postemergence broadleaf weeds, like buttonweed, dollarweed and doveweed, in warm season turf — including St. Augustinegrass. Dismiss® turf herbicide: controls yellow nutsedge, purple nutsedge* and green kyllinga fast—with visible results appearing in just 24-48 hours. Dismiss® South herbicide: fast, visible results against yellow nutsedge and green kyllinga plus enhanced control of purple nutsedge in warm-season grasses. Dismiss® CA herbicide: all of the control of original Dismiss turf herbicide, labeled for use in California. Echelon® herbicide: delivers pre- and early postemergence control of crabgrass, sedges and goosegrass plus suppression of postemergence broadleaf weeds in a single application. Solitare® herbicide: specifically designed to combat any combination of postemergence crabgrass, sedges and broadleaf weed problems in a single application, no tank mixing required. Get long lasting...